Made in Hong Kong. These 06mm cupped button shanks are made from raw brass. With a 1.7mm diameter hole in the Loop,these cup back Button Shanks are meant to be glued or soldered on to an item, turning that item into a usable button or a decorative finding that can be sewn in place Take your point back chatons or rivoli stones, beads, or more, attach this and voila, they are ready to attach.